A rod with resistance R lies across frictionless conducting rails in a constant uniform magnetic field B, as shown. Assume the rails have negligible resistance. The magnitude of the force that must be applied by a person to pull the rod to the right at constant speed v is: A) 0 B) BLv C) BLv/R D) B²L²v/R E) B²Lxv/R

Question

Quizplus · Accepted Answer

The Answer of A rod with resistance R lies across frictionless conducting rails in a constant uniform magnetic field B, as shown. Assume the rails have negligible resistance. The magnitude of the force that must be applied by a person to pull the rod to the right at constant speed v is: A) 0 B) BLv C) BLv/R D) B²L²v/R E) B²Lxv/R

A Rod with Resistance R Lies Across Frictionless Conducting Rails